Cant sign in my gmail due iphone verfication prompt

try disabling the old device in the settings, or try getting to your email via your phone number

Go to Google security settings by logging in to your Google account in a web browser. From there you can enable other verification methods, such as the Google Authenticator app, which you can install on your phone and activate.

Well, if you don’t know the Google password you are stuck. You can go to Google’s support site, where you can find instructions for resetting your password, then set up 2 factor authentication, then add the account to your iPhone. But this is entirely a Google problem, not an iPhone problem so Google support is a better place to find a solution.

I'm having a similar issue. I recently switched carriers and upgraded my phone to the 15 pro. My gmail is working but When I open the Google app to sign in, the verification method is not giving me the option to text my phone. It sends a number code to my Google app which is the app im already in. When I tried from my MacBook the code isn't on my Google app on my phone because I'm not signed in. So I'm in the frustrating circle. I've deleted the app restarted my phone downloaded the app again. My old phone is signed out of erased and set to factory settings. I'm stumped.

Same problem here and you don't need your old iphone. GMAIL is in the cloud so any other device with GMAIL will receive the authenticator prompt.

What worked for us.

1. Delete the GMAIL app from the home screen of the new iphone and re-installed it from the APPS store.
2. Update the Google Chrome APP if it needs it.
3. Once installed open GMAIL APP and sign in.
4. The authenticator prompt should appear on any other device which has GMAIL ie. PC , ipad etc (no need for old iphone).
5. Select YES it was you and gmail will then be available on the new iphone.
6. Good luck!

In case anyone else is reading this. The same thing happened to me. Instead of turning 2 step authentication off - I went into Manage your google account>security>your devices. My old iPhone was still showing there even though I had reset it to factory settings. I logged out of that device on the laptop and tried again and was able to authenticate my gmail.

We’re you using an authenticator app or receiving the codes via text?

If app then you may be able to recover the entries if the app had been set to back up to iCloud. If via text then you’ll need to use one of your recovery codes to sign in & change the recovery information.

Still not working. 2 factor authentication has me in a loop. When I try to log into google on computer it says to get code from phone. When I try to log into google on the phone it also says to get a code from my phone. I'm stuck in a loop where I cannot get the authentication code to log into google. The war between apple/microsoft and google is just getting very very annoying.

Exactly the sam problem

Same!